fix makrdown links to HTML files that use a %%TOKEN%%

2020/ferguson1/terminals.html

@@ -553,7 +553,7 @@ properly. Because that’s what funny means in this context.</p>
 <p>It’d be nice if curses could detect hitting more than one arrow key at the
 same time so that diagonal directions would be possible but unfortunately it’s
 not (<code>cat -v</code> confirms this). Even if I were to define four extra keys what
-would they be? And what about the head character? The <a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/ferguson1/HACKING.html">HACKING.html</a>
+would they be? And what about the head character? The <a href="HACKING.html">HACKING.html</a>
 file has information on this.</p>
 <p>I also limit the terminal size to 10 lines/columns but most likely it would
 require the cheat modes to win and in any event allowing certain low values
@@ -574,7 +574,7 @@ from a quick test this holds even with a terminal that has a white background.
 There is a way to force the background to remain white though that’s by way of
 monochrome (so no colours); I discuss that and another related terminal specific
 in the troubleshooting guide (there’s another way but it would take me over the
-iocccsize; I talk about it in the <a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/ferguson1/HACKING.html">HACKING.html</a>.</p>
+iocccsize; I talk about it in the <a href="HACKING.html">HACKING.html</a>.</p>
 <div id="monochrome">
 <h2 id="monochrome-terminals"><a href="#toc">Monochrome terminals</a></h2>
 </div>